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1.12 LAN Subsystem
The Intel 82559 Fast Ethernet Wired for Management (WfM) PCI LAN subsystem provides both
10Base-T and 100Base-TX connectivity. Features include:
• 32-bit, 33 MHz direct bus mastering on the PCI bus
• 10Base-T and 100Base-TX capability using a single RJ-45 connector with connection and
activity status LEDs
• IEEE 802.3u Auto-Negotiation for the fastest available connection
• Jumperless configuration; the LAN subsystem is completely software-configurable
For information about Refer to
The WfM specification Table 2, page 13
1.12.1 Intel
®
82559 PCI LAN Controller
The Intel 82559 PCI LAN controller’s features include:
• CSMA/CD Protocol Engine
• PCI bus interface
• DMA engine for movement of commands, status, and network data across the PCI bus
• Integrated physical layer interface, including:
Complete functionality necessary for the 10Base-T and 100Base-TX network interfaces;
when in 10 Mbit/sec mode, the interface drives the cable directly
A complete set of Media Independent Interface (MII) management registers for control
and status reporting
IEEE 802.3u Auto-Negotiation for automatically establishing the best operating mode
when connected to other 10Base-T or 100Base-TX devices, whether half- or full-duplex
capable
• Integrated power management features, including support for wake on network event (from an ACPI
S3 state using the PCI bus PME# signal)
For information about Refer to
The LAN subsystem’s PCI specification compliance Table 2, page 13